以醋酸锌、氢氧化钠为原材料,采用十六烷基三甲基溴化铵 (CTAB)、十二烷基苯磺酸钠 (SDBS),通过水热法制备纳米ZnO。利用X射线衍射 (XRD)、扫描电子显微镜 (SEM)以及紫外-可见分光光度计等测试手段对产物的结构、形貌和光催化性能进行表征。结果表明:通过加入不同表面活性剂 (即CTAB、SDBS)可以得到花状、棒状ZnO微纳米晶。经过250W紫外灯照射180min后,利用CTAB和SDBS为模板剂合成的ZnO对甲基橙的降解率分别达到了90%和96%。
Using zinc acetate and sodium hydroxide as raw materials,cetyl trimethyl ammonium bromide (CTAB) and sodium dodecylbenzene sulfonate (SDBS) as templates agents,nano-zinc oxide was prepared by hydrothermal method.The structure,morphology and photocatalytic properties of the product were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM),and UV-visible spectrophotometry.The results showed that flower-like,rod-like nanocrystals can be obtained by adding different surfactants.The different morphology of ZnO micro-nanocrystals all had photocatalytic properties.The photocatalytic performance of ZnO added SDBS was obviously better than that of ZnO added CTAB.The decolorization efficiency of methyl orange solution can be reached 96% under the irradiation of a 250W ultraviolet lamp for 180min.
[1] 董庆华,李镇江.表面活性剂对氧化锌微纳米晶形貌及光致发光性能的影响[J].青岛科技大学学报 (自然科学版),2014,35 (3):246-249.
[2] 李长全,罗来涛,熊光伟.ZnO纳米管的光学性质及其对甲基橙降解的光催化活性[J].催化学报,2009,30 (10):1058-1062.
[3] 冯怡.ZnO、VOx纳米材料及NaF晶体的合成、机理及性能研究[D].天津:南开大学,2009.
[4] 付三玲,蔡淑珍,张晓军,等.水热法制备ZnO晶体及纳米材料研究进展[J].人工晶体学报,2006,35 (5):1016-1021.
[5] 田会娟,郭强强,郝斌,等.表面活性剂对纳米氧化锌形貌和发光性能的影响[J].材料导报,2016,30 (4):69-72.
[6] 刘伶俐,汪杨.表面活性剂对纳米材料形貌及尺寸控制的影响[J].长春师范大学学报,2014,33 (12):62-64,81.
[7] 武立立.氧化锌基纳米结构的制备表征及光电性质[D].哈尔滨:哈尔滨工业大学,2014.
[8] 邢瑞敏,朱金花,刘清伟,等.表面活性剂种类对纳米氧化锌形貌的影响[J].化学研究,2012,23 (5):57-60.
[9] 余花娃,王晶,夏蔡娟,等.CTAB辅助水热合成花状氧化锌及其光催化性能[J].纺织高校基础科学学报,2017,30 (4):541-546.
[10] 王冰,唐立丹,刘哲,等.表面活性剂对ZnO纳米棒阵列生长的影响[J].太阳能学报,2013,34 (4):610-614.
[11] Pauporte T,Rathousky J.Growth mechanism and photocatalytic properties for dye degradation of hydrophobic mesoporous ZnO/SDS films prepared by electrodeposition[J].Microporous & Mesoporous Materials,2009,117 (1):380-385.
[12] 李飞,李珍,靳富江,等.表面活性剂对ZnO纳米晶形貌的影响[J].功能材料,2007,38 (Z):63-67.
基金资助
渭南师范学院自然科学类人才项目(18ZRRC15);陕西省军民融合项目(18JMR08)
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